The Use of Vertical Offsets with Horizontal Strabismus Surgery.
- Author:
Tae Hwan YOO
1
;
Sueng Han HAN
Author Information
1. The Institute of Vision Reaearch, Yonsei University College of Medicine.
- Publication Type:Original Article
- Keywords:
Comitant strabismus;
Displacement;
Vertical
- MeSH:
Follow-Up Studies;
Humans;
Strabismus*
- From:Journal of the Korean Ophthalmological Society
1999;40(1):237-241
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Vertical deviation may sometimes coexit with a large horizontal strabismus. If the vertical component is small and comitant, it may be treated by vertical displacement of the horizontal rectus insertions during a monocular recession-resection procedure. A series of 17 patients had vertical displacement of horizontal rectus muscle insertion monocularly combined with recession-resection surgery. Using a surgical plan of 1mm displacement of both medial and lateral rectus insertion to correct each prism diopter of vertical deviation, 12 patients had no residual vertical strabismus. Minimum follow-up period was 3 months. The linear correlation equation between the amount of corrected vertical strabismic angle and that of vertical displacement of medial and lateral rectus muscle is Y=0.67X+0.22(Y=Prism diopter of correction by vertical displacement, X=millimeter of vertical displacement of medial and lateral rectus muscle). These surgical results showed unsatisfactory effect on vertical deviation of more than 6 prism diopters.
